/Engine/Plugins/FX/Niagara/Source/Niagara/Public/NiagaraRendererRibbons.h
static void GenerateShapeStatePlane ( [FNiagaraRibbonShapeGeometryData](API\Plugins\Niagara\FNiagaraRibbonShapeGeometryData) & State, int32 WidthSegmentationCount, bool bUseMaterialBackfaceCulling )